Response.Clear();
Response.Buffer = true;
Response.AppendHeader("Content-Disposition", "attachment;filename=salary table.xls");  //弹出对话框;
Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");  //设置输出流为简体中文
Response.ContentType = "application/vnd.ms-excel";  //设置输出文件类型